找不到的用法和樣例：
例句
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我們翻遍了文件夾，怎麼也找不到那封信。
We raked around in the files, but couldn't find the letter. -
我們怎麼也找不到一間旅館客房。
We couldn't find a hotel room for love or money. -
清潔工把我的文件弄亂了，我找不到我要的那份了。
The cleaner had muddled my papers, and I couldn't find the one I wanted. -
我們（各處）找了半天，卻找不到那本書(shū)。
We searched (around) for hours, but couldn't find the book. -
她翻遍了手提包，就是找不到鑰匙。
She foraged (ie rummaged) about in her handbag, but couldn't find her keys.
